Instructions - Parts List
®
75:1 Fire-Ball
425 Pumps
For pumping non-corrosive and non-abrasive greases and lubricants only. For
professional use only.
Model No. 239729, Series B
120 lb (55 kg) drum length
Model No. 239730, Series B
400 lb (180 kg) drum length
Model No. 239731, Series B
stubby length
308777L
EN
100 psi (0.7 MPa, 7 bar) Maximum Air Input Pressure
7500 psi (51.7 MPa, 517 bar) Maximum Working
Pressure
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
This pump is designed to be used only in pumping
non-corrosive and non-abrasive oils and lubricants.
Any other use of the pump can cause unsafe
operating conditions and component rupture, which
can result in fluid injection, other serious injury, or fire
or explosion.
Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mounting the Pump . . . . . . . . . . . . . . . . . . . . . . . 5
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . 5
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 7
Startup and Adjustment . . . . . . . . . . . . . . . . . . . 7
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Displacement Pump Repair . . . . . . . . . . . . . . . . 9
Air Motor and Throat Service . . . . . . . . . . . . . . 10
Throat Packing Service . . . . . . . . . . . . . . . . . . . 12
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Mounting Hole Layout . . . . . . . . . . . . . . . . . . . . . . 17
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 18
2 308777L
Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When
these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific
hazard symbols and warnings not covered in this section may appear throughout the body of this manual where
applicable.
WARNING
FIRE AND EXPLOSION HAZARD
When flammable fluids are present in the work area, such as gasoline and windshield wiper fluid, be
aware that flammable fumes can ignite or explode. To help prevent fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources, such as cigarettes and portable electric lamps.
• Keep work area free of debris, including rags and spilled or open containers of solvent and gasoline.
• Do not plug or unplug power cords or turn lights on or off when flammable fumes are present.
• Ground all equipment in the work area.
• Use only grounded hoses.
• Stop operation immediately if static sparking occurs or you feel a shock. Do not use equipment
until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
SKIN INJECTION HAZARD
High-pressure fluid from dispensing device, hose leaks, or ruptured components will pierce skin. This
may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical
treatment.
• Do not point dispensing device at anyone or at any part of the body.
• Do not put your hand over the fluid outlet.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Follow the Pressure Relief Procedure when you stop dispensing and before cleaning, checking, or
servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses and couplings daily. Replace worn or damaged parts immediately.
308777L 3
Warnings
WARNING
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system component. See Technical D ata in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request MSDS from distributor or retailer.
• Do not leave the work area while equipment is energized or under pressure.
• Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’s replacement parts only.
• Do not alter or modify equipment. Alterations or modifications may void agency approvals and create
safety hazards.
• Make sure all equipment is rated and approved for the environment in which you are using it.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
• Read MSDSs to know the specific hazards of the fluids you are using.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
• Always wear chemically impermeable gloves when spraying, dispensing, or cleaning equipment.
MOVING PARTS HAZARD
Moving parts can pinch, cut or amputate fingers and other body parts.
• Keep clear of moving parts.
• Do not operate equipment with protective guards or covers removed.
• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,
follow the Pressure Relief Procedure and disconnect all power sources.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent serious injury, including
eye injury, hearing loss, inhalation of toxic fumes, and burns. This protective equipment includes but is
not limited to:
• Protective eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer
4 308777L
Installation
Installation
Mounting the Pump
• Selection a convenient location for the equipment to
ensure easy operator access to the pump air controls, sufficient room to change supply containers,
and a secure mounting platform.
• If you are mounting the pump directly on the supply
tank, position the pump so its intake valve is no
more than 1 inch (25 mm) from the bottom of the
container. Mount the pump to the cover or other suitable mounting device.
Mount the pump securely so that it cannot move
around during operation. Failure to do so could result
in personal injury or equipment damage.
Grounding
Dispensing valve: Ground through connection to a
properly grounded fluid hose and pump.
Object being dispensed to: Follow your local code.
Solvent pails used when flushing: Follow your local
code. use only metal pails, which are conductive, placed
on a ground surface. Do not place the pail on a non-conductive surface, such as paper or cardboard, which
interrupts the grounding continuity.
To maintain ground continuity when flushing or
relieving pressure: Hold a metal part of the dispensing
valve firmly to the side of a grounded metal pail, then
trigger the gun.
Z
Y
The equipment must be grounded to reduce the risk
of static sparking and electric shock. Electric or static
sparking can cause fumes to ignite or explode.
Improper grounding can cause electric shock.
Grounding provides an escape wire for the electric
current.
Be sure to ground all of this equipment:
Pump: Use a ground wire and clamp as shown in F
Remove the ground screw (Z) and insert through the
eye of the ring terminal at end of ground wire (Y). Fasten
the screw back onto the pump and tighten securely.
Connect the other end of the wire to a true earth ground.
To order a ground wire and clamp, order Part No.
222011.
Air and fluid hoses: Use only electrically conductive
hoses.
Air compressor: Follow manufacturer’s recommendations.
IG. 1.
FIG. 1
Typical Installation
Mount the pump to suit the type of installation planned.
Very heavy lubricants may require an inductor plate.
See Dimensions and Mounting Hole Layout on page 17.
Install the air line accessories in the approximate order
shown in F
within easy reach of the pump, upstream from the air
regulator (E). Install an air filter (C) to remove harmful
dirt and moisture from your compressed air supply. For
automatic air motor lubrication, install an air line oiler (D)
close to the pump air inlet. Install and air regulator (E) to
control the pump speed.
The installation shown in F
selecting and installing system components and accessories. Contact your Graco distributor for assistance in
designing a system to suit your particular needs.
IG. 2. Install a bleed-type master air valve (B)
IG. 2 is only a guide for
308777L 5
Installation
If you supply your own accessories, be sure they are
adequately sized and pressure-rated to meet the system
requirements.
A bleed-type master air valve (B) is required to shut
off and relieve air pressure that may be trapped in the
air motor. Trapped air could cause the pump to cycle
unexpectedly and cause serious bodily injury,
including amputation.
A
BD
Be sure the air hose is properly sized to deliver an adequate supply of air to the motor. See Technical Data on
page 15.
Connect a ground dispensing hose (F) to the 3/8 npt(f)
pump outlet. Install an appropriate fun or dispensing
valve (G) to the hose.
Ground the pump as explained in Grounding on page 5.
J
F
C
FIG. 2: Typical Installation
Key:
A Grounded air line
B Bleed-type master air valve
CAir filter
D Air line oiler
E Air regulator
F Grounded dispensing hose
G Dispensing Valve
H Elevator assembly with inductors
J Ground wire
E
G
H
6 308777L
Operation
Operation
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing
fluid and moving parts, follow the Pressure Relief
Procedure when you stop spraying and before
cleaning, checking, or servicing the equipment.
1. Close the air regulators.
2. Close the supply pump’s bleed-type master air valve
(required in this system).
3. Open the dispensing valve until pressure is fully
relieved.
If you suspect that the dispensing valve, extensions, or
grease fitting coupler is clogged, or that pressure has
not been fully relieved after following the steps above,
VERY SLOWLY loosen the coupler or hose end coupling
and relieve pressure gradually, then loosen completely
and clear the clog.
Startup and Adjustment
Open the bleed-type master air valve. Open the dispensing valve and slowly open the air regulator until the
pump is running smoothly. After all the air is purged,
close the dispensing valve. The pump starts and stops
as the valve is opened and closed.
NOTICE
Never allow the pump to run dry of fluid being
pumped. A dry pump quickly accelerates to a high
speed and may damage itself. If your pump accelerates quickly, or is running to fast, stop it immediately
and check the fluid supply. If the supply container is
empty and air has been pumped into the lines, prime
the pump and lines with fluid, or flush the pump and
leave it filled with a compatible solvent. Be sure to
eliminate all air from the fluid system.
Use the air regulator (E) to control the pump speed and
fluid pressure. See F
sure necessary to obtain the desired results.
When done using the pump for the day, always follow
the Pressure Relief Procedure at left.
IG. 2. Always use the lowest pres-
308777L 7
Maintenance
Maintenance
The accessory air line oiler (D) provides automatic air motor lubrication. For daily manual lubrication, disconnect the
air hose, place about 15 drops of light machine oil in the air inlet, reconnect the hose, and turn on the air supply to
blow oil into the motor.
Troubleshooting
Before servicing this equipment always make sure to
relieve the pressure, see Pressure Relieve Procedure,
page 7.
NOTE: Check all possible problems and solutions
before disassembling the pump.
Problem Cause Solution
Pump fails to operate Inadequate air supply pressure or
restricted air lines
Closed or clogged valves Open; clear
Clogged fluid lines, hoses, valves,
etc.
Damaged air motor Service air motor
Exhausted fluid supply Refill and reprime, or flush
Continuous air exhaust Worn or damaged air motor gasket,
packing, seal, etc.
Erratic pump operation Exhausted fluid supply Refill and reprime, or flush
Held open or worn intake valve or
piston packings
Pump operates, but output low on
upstroke
Pump operates, but output low on
downstroke
Pump operates, but output low on
both strokes
Held open or worn piston or packings
Held open or worn intake valve Clear; service
Inadequate air supply or restricted
air line
Closed or clogged valves Open; clean
Increase air supply; clear
Clear*
Service air motor
Clear; service
Clear; service
Increase air supply; clear
Exhausted fluid supply Refill and reprime or flush
Clogged fluid lines, hoses, valves,
etc.
Packing nut too tight Loosen
Loose packing nut or worn packings Tighten; replace
* Follow the Pressure Relief Procedure (page 7) and disconnect the fluid line. If the pump starts when the air is
turned back on, the fluid line, hose, valve, etc., was clogged.
8 308777L
Clear*
Repair
Repair
Refer to FIG. 3 for the following instructions.
79
64
59
68
65
74
59
62
72
69
75
76
70
78
Ref. No. 63 (copper gasket) and
Ref. No. 60
Parts Drawing on page 16.
77
62
1
66
67
61
68
2
80
1
73
72
(cotter pin), see
1/4” ROD
71
06336
• Whenever replacing the packings, also replace the
glands and bearings.
• When cleaning parts, use a compatible solvent.
Inspect parts for wear or damage and replace as
necessary. Scoring or irregular surfaces on the
priming tube (72) or polished inner wall of the riser
tube (80) causes premature packing wear and leaking. Check these parts by holding the parts up to the
light at a slight angle.
Disassembly
1. Flush the pump if possible.
2. Relieve the pressure, see page 7.
3. Disconnect all air and fluid hoses.
4. Clamp the motor base in a vise. Unscrew the priming cylinder (78).
5. Hold the priming tube (72) with a 1/4 inch (6 mm)
diameter rod through the holes in the tube. Grip the
flats of the priming piston (71) with a wrench, and
unscrew the piston.
6. Loosen the packing housing (70). Unscrew the riser
tub e(80) from the air motor. Pull the riser tube and
connecting rod down to gain access to the cotter pin
(60). Remove the cotter pin, and un-thread the connecting rod (79) from the motor displacement rod.
7. Place the riser tube (80) in a vise, and remove the
piston assembly. Remove the packing housing (70)
from the riser tube, and remove the packings from
the housing.
8. Hold the intake valve housing (67) in a vise, and
FIG. 3
Displacement Pump Repair
Before you start:
• To reduce downtime, be sure to have all necessary
repair parts available. Recommended spare parts
are listed in the parts list.
• Repair kit 239734 is available. Use all new parts for
unscrew the priming tube *72) by inserting a 1/4
inch (6 mm) diameter rod through the holes in the
tube. Handle the tube carefully to avoid marring the
surface. Remove the ball, seat, and gasket.
9. Unscrew the piston valve housing (64) from the
intake valve housing (67). Remove the ball and
packings.
10. Clean all parts thoroughly. Grease all parts, except
threads when reassembling.
best results.
• The balls (59) in the intake and piston valves cannot
be re-seated on the hardened seats (68).
308777L 9
Repair
Reassembly
1. Hold the intake housing (67) upright in a vise. One
at a time, place the female gland (74), four leather
v-packings (66) with the lips of the packings facing
up, and the male gland (65) on the intake housing.
Place the gasket (62), seat (68), and ball (59) on the
housing (67).
2. If the pins (77) were removed from the piston valve
housing (64), replace them. Screw the piston vale
onto the intake valve housing.
3. Place a gasket (62), seat (68), and ball (59) on the
priming tube (72). Holding the piston valve housing
(67) with a wrench, screw the priming tube into it,
using a 1/4” diameter rod through the tube for leverage.
4. One at a time, place the female gland (76), four
leather v-packings (73) with lips of packings facing
up, a male gland (75), and a bearing (69) in the
packing housing (70). Screw the housing firmly into
the riser tube (80).
5. Guide the piston assembly into the riser tube (80).
Screw the riser tube into the motor base, making
sure the gasket (63) is in place. Install the cotter pin
(60).
Two accessory tools should be used: Padded Pliers,
207579, used to grip the trip rod without damaging its
surface; Gauge, 171818, is used to ensure the proper
clearance between the poppets and seat of the transfer
valve.
Disassembly
1. Flush the pump.
2. Relieve the pressure, see page 7.
3. Disconnect the air hose from the motor. If necessary, disconnect the motor from the pump. Clamp
the air motor base in a vise.
4. Manually push up on the piston rod to move the piston assembly to the top of its stroke. Unscrew the
cylinder cap nut (31) from the cylinder (32). Pull up
on the cap nut. Grip the trip rod (1) with padded pliers, 207579, and screw the cap nut off the trip rod.
(F
IG. 4)
5. Remove the eight screws (7) holding the cylinder
(32) to the base (56). Carefully pull the cylinder
straight up off the piston. (F
IG. 4)
6. Torque the riser tube to 50 to 70 ft-lbs (68 to 95
N.m).
7. Screw the priming piston (71) onto the priming tube
(72). Screw the intake cylinder (78) firmly onto the
riser tube.
8. Reconnect the ground wire if it was disconnect during repair.
Air Motor and Throat Service
Before You Start
Before sure to have all necessary parts on hand. Air
Motor Repair Kit 207385 included repair parts for the
motor. Pump Repair Kit 239734 includes repair parts for
the pump and the air motor throat area. Use all parts in
the kits for best results.
31
1
Hold trip rod with
padded pliers
207579, to prevent
damage to rod
32
7
56
36
FIG. 4
NOTICE
To avoid damaging the cylinder wall. Always lift the
cylinder straight up off the piston. Never tilt the cylinder as it is being removed.
10 308777L
Repair
6. Use a screw driver to push down on the trip rod
yoke (14) and snap the toggle assemblies (K) down.
See F
IG. 5. Remove the lock wires (28) from the
adjusting nuts (27) of the transfer valves (M). Screw
the top adjusting nuts (27) off. Screw the valve
stems (30) out of the grommets (18) and lower
adjusting nuts (27). Take the valve poppets (37) off
the stems and squeeze them firmly to check for
cracks.
7. Grip the toggle rockers (16) with a pliers. Compress
the springs (17) and swing the toggle assembly (K)
up and away from the piston lugs (L), and remove
the parts. Check that the valve actuator (13) is sup-
Push toggles (K) in
and then up.
Turn wires up.
17
K
16
L
114
28*
ported by the spring clips (4), but slides easily into
them. (F
IG. 5)
8. Remove the trip rod yoke (14), valve actuator (13)
and trip rod (1). Check the exhaust valve poppets
(38) for cracks.
NOTE: To remove the exhaust valve poppets (38),
stretch them out and cut with a sharp knife.
9. Pull the piston (5) up out of the base (56) and
inspect the piston o-ring (20) and the o-ring in the
base casting.
Cut off tops of
poppets (x) as
indicated by dotted
27*
30*
18*
27*
4
13
M
lines
1
38*
30*
27*
18*
27*
20*
4
13
38*
37*
FIG. 5
Reassembly
1. Clean all the parts carefully in a compatible solvent
and inspect for wear or damage. Use all the repair
kit parts during reassembly and replace other parts
as necessary.
2. Check the polished surfaces of the piston, piston rod
and cylinder wall for scratches or wear. A scored rod
will cause premature packing wear and leaking.
3. Lubricate all parts with a light, water-resistant
grease.
0.125 in.
(3.18 mm)
5
56
CUTAWAY VIEW
37*
5
4. Be sure the o-rings re in place. Slide the piston rod
down through the throat bearing and lower the piston (5) into the air motor base (56).
5. Pull the exhaust valve poppets (38) into the valve
actuators (13) and clip off the top part shown with
dotted lines. (F
IG. 5)
6. Install the transfer valve poppets (37) onto the valve
stems (30), bottom adjusting nuts (27), grommets
(18), and top adjusting nuts (27) on the piston (5).
Assemble the trip rod (1), valve actuator (13), trip
rod yoke (14, and toggle assemblies (K) on the piston. (F
IG. 5)
308777L 11
Repair
7. Before installing the lock wires (28) in the adjusting
nuts (27), use the special gauge, 171818, to adjust
the transfer valve (M) so there is 0.125 inches (3.68
mm) clearance between the poppets (37) and the
piston (5) when the toggle assemblies are in the
down position.
8. Snap the toggle assemblies (K) to the up position.
Reinstall the cylinder (32) and cap nut (31). Reassemble the air motor to the displacement pump.
9. Before remounting the pump, connect an air hose
and run the pump slowly, at about 40 psi (0.28 MPa,
2.8 bar) to ensure that it operates smoothly.
10. Reconnect the ground wire before regular operation
of the pump.
Throat Packing Service
The piston in the air motor, located behind the air motor
plates, moved when air is supplied to the motor. Moving
parts can pinch or amputate your fingers or other body
parts. Therefore, never operate the pump with the air
motor plates removed.
See FIG. 6 on page 12 and the Parts drawing and list
(page 13 and 14) for further information.
1. Clamp the pump in a vise and unscrew the riser
tube (80) from the air motor base (56). Pull the riser
tube away from the air motor until the cotter pin (60)
which secures the displacement pump connecting
rod to the air motor piston rod (52) is visible. (F
IG. 6)
5. Clean the throat packing area in the base and the
packing nut. Clean and inspect all parts, and
replace as necessary.
6. Lubricate the packings, piston rod, and piston flange
with a light, water-resistant grease.
7. Install the washer (26) into the base. Assemble the
packing (25) and the wiper (22) into the retainer
(24). Install the o-ring (23) onto the retainer, and
insert the retainer assembly into the base.
NOTE: Make sure the packing (25) lips face down, and
make sure the wiper (22) lips face up.
8. Insert the bearing (46) and the washer (44) into the
base. Assemble the female gland (48), v-packings
(49), and the male gland (47) into the packing nut
(45).
9. Reinstall the spacer and packing in the base and
packing nut (45). Screw the packing nut into the
base, and tighten it securely. Carefully slide the piston rod (52) down through the throat packing, and
lower the piston into the base. Reinstall the plate
(36) and cylinder (32). Reassemble the air motor to
the displacement pump.
10. Torque the outlet adapter (42) to 45 to 55 ft-lbs (61
to 75 N.m).
NOTICE
When reinstalling cotter pin (60), always spread and
flatten the pin (both the head and prongs) around the
rod to within 1 inch (25 mm) total diameter. See Detail
A of F
IG. 6.
2. Remove the cotter pin (60) and unscrew the pump
32
connecting rod (79) fro the air motor piston rod (52).
Remove the cylinder (32) from the air motor base
(56) as described in the Disassembly section on
page 10).
3. Remove the louvered air exhaust plate (36) and
unscrew the throat packing nut (45), using a spanner wrench or a 0.22 inch (5.6 mm) diameter rod.
(F
IG. 6)
4. Remove the packing nut (45), male and female
glands (47 and 48), v-packings (49), washer (44),
bearing (46), retainer (24), wiper (22), o-ring (23),
56
45
SEE DETAIL A
36
DETAIL A
1 in.
(25 mm)
52
60
79
u-cup (25), and washer (26) from the base.
80
FIG. 6
12 308777L
Parts
32
31
Parts
45
48
9
49
47
44
46
16
17
14
38*
18*
27*
28*
27*
68
79
64
56
1
42
7
40
33
6
36
13
15
29
1
3
4
2
5
*20
*37
8
52
*30
63
22
23
24
25
26
21*
19
60
77
53
33
72
58
80
69
75
73
76
70
71
59
Torque to 45–55 ft–lb (61–75 N–m)
1
66
67
61
68
62
62
65
74
59
78
308777L 13
Parts
Model 239729, Series B,
120 lb (55 kg) drum length
Model 239730, Series B,
400 lb (180 kg) drum length
Model 239731, Series B,
Stubby length
Air Motor
Ref. Part Description Qty.
1 207150 TRIP ROD 1
2 207391 PISTON, includes items 3 to 5 (also
includes 207385 repair kit when
ordered as a replacement part)
3 102975 SCREW, rd hd mach, 6-32 x 1/4 in. 2
4❖ 158361 CLIP, spring 2
5 BARE PISTON 1
6 100078 SCREW, hex hd, 8-32 x 3/8 in. 20
7 101578 SCREW, hex head Nylock, 8-32 x
3/8 in.
8 150647 GASKET, copper 1
9❖ 156698 O-RING, buna-N 1
13 158359 ACUTATOR, valve 1
14 158360 YOKE, rod, trip 1
15 158362 PIN, toggle 2
16 158364 ROCKER, toggle 2
17 167585 SPRING, helical compression 2
18❄ 158367 GROMMET, rubber 2
19 158377 SEAL, flat ring, nitrile rubber 1
20❄ 158378 SEAL, o-ring, nitrile rubber 1
21❄ 158379 SEAL, o-ring, nitrile rubber 1
22‡ 113935 WIPER, rod 1
23‡ 113944 PACKING, o-ring 1
24‡ 192172 RETAINER, packing 1
25‡ 113936 PACKING, u-cup 1
26‡ 192173 WASHER, packing 1
27❄ 160261 NUT, adjusting 4
28❄ 160618 LOCKWIRE, transfer valve 2
29 160623 ARM, toggle 2
30❄ 160896 STEM, valve 2
31 161435 NUT, cylinder cap 1
32 15E954 CYLINDER, motor, air 1
33 178270 PLATE, muffler 2
36 15E555 PLATE, identification 1
37❄ 170708 POPPET, valve, urethane 2
38❄ 170709 POPPET, valve, urethane 2
40 150461 GASKET, copper 1
42 158409 ADAPTER, outlet 1
44‡ 158697 WASHER, thrust 1
45‡ 159047 NUT, packing 1
46‡ 159048 BEARING, brass 1
47‡ 159306 GLAND, male 1
48‡ 159307 GLAND, female 1
Ref. Part Description Qty.
49‡ 159308 V-PACKING, nitrile rubber 4
52 162553 ROD, piston 1
53 116343 SCREW, grounding 1
56 165362 BASE, motor, air 1
58 177843 PLATE, warning 1
Pump
Ref. Part Description Qty.
59✿ 100170 BALL, steel, 3/8” dia 2
60✿ 100579 PIN, cotter, 7/64” dia, 1“ long 1
61❖ 108513 PIN, roll, 0.135” dia, 7/8” long 1
1
62✿ 150451 GASKET, copper 2
63 158314 GASKET, copper 1
64 162555 HOUSING, piston valve 1
65✿ 192423 GLAND, male 1
66✿ 114115 V-PACKING, leather 5
67 162558 HOUSING, intake 1
68 162559 SEAT, valve 2
8
69✿ 192421 BEARING, brass 1
70 192410 HOUSING, packing 1
71 162562 PISTON, priming 1
72 192424 TUBE, priming 1
73✿ 114116 V-PACKING, leather 5
74✿ 192425 GLAND, female 1
75✿ 192426 GLAND, male 1
76✿ 192427 GLAND, female 1
77❖ 102180 PIN, roll, 0.135 in dia, 1 in long 2
78 164233 CYLINDER, intake primer 1
79 164234 ROD, connecting, 12.47” (317 mm)
long, model 239729
164231 ROD, connecting, 19-13/32” (439
mm) long, model 239730
192422 ROD, connecting, 3-9/32” (83 mm)
long, model 239731
80 192428 TUBE, riser, 21.31” (541 mm) long,
model 239729
192429 TUBE, riser, 28.25” (718 mm) long,
model 239730
192430 TUBE, riser, 12.13” (308 mm) long,
model 239731
❄ Parts included in Kit 207385 (purchase separately).
Repair Kit 239734, which may be purchased separately, includes part to service the air motor throat
area and the pump lower.
‡ Parts for the air motor throat area.
✿ Parts for the pump lowers.
❖ Recommended “tool box” spare parts. Keep on hand
to reduce down time.
1
1
1
1
1
1
14 308777L
Technical Data
.
75:1 Fire-Ball® 425 Pumps
US Metric
Fluid pressure ratio 75:1
Air pressure operating range 40 to 100 psi 0.3 to 0.7 MPa, 3 to 7 bar
Maximum working pressure 7500 psi 51.7 MPa, 517 bar
Maximum delivery
Cycles per gallon (liter) 165 42
Maximum recommended pump speed 60 cycles/minute
Air motor effective diameter 4.25 inches 108 mm
Stroke 4 inches 102 mm
Air consumption
Wetted Parts steel, brass, aluminum, leather
Weight
Model 239729 34 lb 15 kg
Model 239730 37 lb 17 kg
Model 239731 30 lb 14 kg
0.33 gpm
approximately 26 cfm at 1
gpm, at 70 psi
1.3 lpm
approximately 0.72 m
1 gpm, at 0.5 MPa, 5 bar
3
Technical Data
/min at
Sound Pressure Level
(measured at 1 meter from unit)
Input Air Pressures at 15 cycles per minute
40 psi (0.28 MPa, 2.8 bar) 70 psi (0.48 MPa, 4.8 bar) 100 psi (0.7 MPa, 7 bar)
73.6 dB(A) 78.34 dB(A) 80.85 dB(A)
Sound Power Level
(tested in accordance with ISO 9614-2)
Input Air Pressures at 15 cycles per minute
40 psi (0.28 MPa, 2.8 bar) 70 psi (0.48 MPa, 4.8 bar) 100 psi (0.7 MPa, 7 bar)
87.4 dB(A) 92.09 dB(A) 94.62 dB(A)
308777L 15
Technical Data
Dimensions
3/8 npt
fluid
outlet
14–9/16”
(369.9 mm)
3/8 npt
fluid
outlet
14–9/16”
(369.9 mm)
6.5”
(165.1 mm)
diameter
1/2 npt(f)
air inlet
Model 239729, Series B
26–11/16”
678 mm
41.25”
1048 mm
3/8 npt
fluid
outlet
6.5”
(165.1 mm)
diameter
6.5”
(165.1 mm)
diameter
1/2 npt(f)
air inlet
06306
33–5/8”
855 mm
48–3/16”
(1224 mm)
Model 239730, Series B
14–9/16”
(369.9 mm)
32–1/16”
17.5”
445mm
814 mm
1/2 npt(f)
air inlet
Model 239731, Series B
16 308777L
Mounting Hole Layout
Mounting Hole Layout
3 1/4” (82.6 mm) dia.
2–3/32” (53.18 mm)
two 5/16” (7.94 mm) dia. holes
on 4 1/4” (108 mm) bolt circle
45
7/8” (22.2 mm) dia.
308777L 17
Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will
be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.
Graco Information
For the latest information about Graco products, visit www.graco.com.
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6928 or Toll Free: 1-800-533-9655, Fax: 612-378-3590
All written and visual data contained in this document reflects the latest product information available at the time of publication.
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 1997, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
Graco reserves the right to make changes at any time without notice.
For patent information, see www.graco.com/patents.
Original instructions. This manual contains English. MM 308777
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
www.graco.com
Revised December 2012
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